fakeplayer_inv_editor may dupe items

[17183248569]

Describe the bug
script fakeplayer_inv_editor may dupe items

To Reproduce
use /player command to let fake player drop items continuously, use the script`s screen give it items.
it will drop the items out without delete the item in screen.

Expected behavior
it does not dupe item

when testing this script, i found a wierd behavior:gnembon/fabric-carpet#1515

[RedW0lfStoneYT]

Does seem to work with single items only as far as I can see, still a big issue considering you can dupe shulkerboxes of items.
If you give them a stack it works as intended to my knowledge.

[sakurawald]

Can confirm in 1.20.1 with carpet-fabric 1.4.112+v230608
See also #1515